Thread: Psycheual
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Old 10 March 2010, 13:05   #13
Toni Wilen
WinUAE developer
 
Join Date: Aug 2001
Location: Hämeenlinna/Finland
Age: 49
Posts: 26,515
Quote:
Originally Posted by Asman View Post
write sprite pointers into the copperlist and then ( very quickly ) set position/control in sprite data
(was already replied but it didn't really explain anything )

This works fine as long as you do not modify sprite data when sprite DMA reads them. Sprite DMA engine fetches first sprite words when vertical position is 25 (PAL) or 20 (NTSC). Lots of time to update. Nothing to do with when/if sprite pointers are updated.
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